QoS-aware channel sensing scheduling in cognitive radio networks

Jae Kark Choi, Ki Hyuk Kwon, Sang Jo Yoo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

Cognitive radio (CR) has been considered as the most prominent technique for flexible spectrum utilization. Protecting primary users (PUs) from any harmful interference is the most important issue in CR networks. Secondary users (SUs) periodically sense the channels in order to detect the PU's appearance. Without a proper sensing schedule, however, sensing operation may degrade the quality of service (QoS) of SUs. In this paper, we propose the channel sensing scheduling that protects PUs by sensing the channels with a proper sensing interval as well as maintains the QoS of SUs as possible. Channel sensing intervals required for protecting PUs and sensing cycle required for guaranteeing QoS of SUs are numerically formulated. We show that our proposal outperforms the consecutive channel sensing method in terms of delay and packet loss.

Original languageEnglish
Title of host publicationProceedings - IEEE 9th International Conference on Computer and Information Technology, CIT 2009
Pages63-68
Number of pages6
DOIs
StatePublished - 2009
EventIEEE 9th International Conference on Computer and Information Technology, CIT 2009 - Xiamen, China
Duration: 11 Oct 200914 Oct 2009

Publication series

NameProceedings - IEEE 9th International Conference on Computer and Information Technology, CIT 2009
Volume2

Conference

ConferenceIEEE 9th International Conference on Computer and Information Technology, CIT 2009
Country/TerritoryChina
CityXiamen
Period11/10/0914/10/09

Keywords

  • Channel sensing
  • Cognitive radio (CR)
  • QoS-aware sensing
  • Sensing scheduling

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